What is the value of 5a + 7b if a = 4 and b = 3?? a : 41 b : 12 c : 43 d : 35
2 answers:
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Answer:
yes
Step-by-step explanation:
70%=70/100=7/10
what you do is shade 7 of the squares and say that is 21
now each square is worth the same
so 21/7=3
each square is worth 3
10 squares
3 times 10 is 30
the number is 30
see diagram
what you do is shade 7 of the squares and say that is 21
now each square is worth the same
so 21/7=3
each square is worth 3
10 squares
3 times 10 is 30
the number is 30
see diagram